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| Keywords: PZSL1907Page0770.png Polypterus bichir <small>Geoffr sic</small> Polypterus bichir bichir <small>Lacépède 1803</small> en Diagrammatic view of a Nile Bichir scale b isopedine inner bony layer c canaliculi of the cosmine layer d superficial denticles g ganoine layer h horizontal vascular canals o openings of vertical canals vc vertical canals Proceedings of the Zoological Society of London http //archive org/details/proceedingsofzoo19074471121zool vol 1907 issue 4 http //archive org/stream/proceedingsofzoo19074471121zool page/770/mode/1up page 770 1907 published 1908 From Lankester's Treatise on Zoology by permission of Messrs A C Black PD-old PZSL 1907-4 Illustrations of fish scales Polypterus bichir | ||||
